A-- (x)(.10)= New cost
B--New cost-2000= Cost after 10% discount and 2,000 discount
C--You'll have find what number mulitiplied by(.10) equals $18,000
D-- $18,000 is the price with the $2,000 already taken out, so now you just do 18,000(.10)=
The general equation that represents the circle is x² + y² + 8x - 18y + 72 = 0
<h3>How to determine the circle equation?</h3>
The center of the circle is given as:
Center, (a,b) = (-4,9)
The diameter is given as:
d = 10
Calculate the radius (r)
r = 10/2 = 5
The circle equation is then calculated using:
(x - a)² + (y - b)² = r²
So, we have:
(x + 4)² + (y - 9)² = 5²
Expand
x² + 8x + 16 + y² - 18y + 81 = 25
Collect like terms
x² + y² + 8x - 18y + 16 + 81 - 25 = 0
Evaluate
x² + y² + 8x - 18y + 72 = 0
Hence, the general equation that represents the circle is x² + y² + 8x - 18y + 72 = 0
Read more about circle equations at:
brainly.com/question/1559324
Answer:
Step-by-step explanation:
i dont understand
lol did her acc just got banned
Answer:
63
Step-by-step explanation:
7 x 3 + 6 x 7
21 + 42
63
